Heat-retaining oven.



A. P. HAWLEY.

HEAT RETAINING OVEN.

APPLICATION FILED JUNE 3.1914.

WTNESSES /NI/ENTOR THE NORRIS PETERS CO, PHOTO-LITHO.. WASHINGUN. D. C4

- citizenof the United States,

wm@ STATES @www ANNE i?. HAWLEY, or BRrnGEPoaT, CONNECTICUT.

HEAT-RETAINING OVEN.

Specification of Letters Patent.

Application led June 3, 1914. j* Serial No. 842,578'. Y

'An object of this invention is to'c'onvservek the heat within saidoven, yet allowingitto freely flow to all portions thereof..

Another object of this invention 1s to have v a damper arrangementwherebysaid dam- I so pers are opened when in use and closed when not inuse. And` still another object of this inventionis an automaticarrangement whereby the supply valves are guarded according as towhether the stove is 1n use or not."

These and further objects in view will be,

developed as the specification proceeds and I will now proceed todisclose the preferred embodiment of my invention.

I do not desire to be limited to the structure shown which is but apreferred form, but claim whatever can be included within the scope ofthe claimappended hereto. v

Similar characters of reference refer to similar parts throughout theseveral views,

in which,

Figure 1 is a sectional side elevation of my device. Fig. 2 is a bottomplan view showing position. p

1 is my oven proper showing the insulator 2 between double Awalls v3 andt thereof, said insulators beingiof any preferred material, preferablyof asbestos. are positioned a number of shelves 5 which are retained'inV`position by means ofthe flanges or brackets 6 as can clearly be seen inFig. 1 of thedrawings.V The front and rearv edges 7 and 8 respectivelyof these shelves are recessed or offset as'at9' and 10, the purpose ofthis being to allow the heat to pass from the burner flueup' around theshelves so that the heat can reach all parts of thev oven. A number vofapertures 11 are spaced at desiredpointsin the bottom of the oven whilecentrally vof said bottom is an vthe oven as at 16 the damper attachmentin openl Within said oven ing the check valves aperture through which abolt or other'suitable fastening means 12 is run, on which is plvotallymounted my damper device 13, this damper devicehaving a multiplicity ofblades lt suitably positioned vto close the said aperturesll. The endsof the blades 11 are -guided and protected .by means of slottedvbrackets 14 which n project down# wardly from the bottom VVofthe stove,the ends of the bladesl playing between the bottom of the 'stove andtheinner surface-of the'brackets forming the slot therebetween. From one ofsaid arm l1 is extended and bent upward at right angles to playvalongthe rearside` of bent outward at right angleshaving the rtree.

ratented'nay 1s, 1915- blades 114: is connected fa Vcoupling member l5or, if it is desired, the

in Fig. 1. Theend 16'of this arm or of the couplingmember l5 is aperture18 runningtherethrough. A dam* per attachment flange 20 is rigidlyconnected to the parts 17 by means of a rivet orv other suitablefastening device as can clearly be seen in Fig. l ofl the drawings. i ithrough a suitable slot 22 through the smoke flue 23 and is adapted tocover the vent`24fV j l inthe back of the member 19 is guided by thebracket 2.5. n

,Attached to the member 14 which covers o ven. The end of the intooperative position 19 having an outturned 8o l ThisV member 19 runs theapertures 11 near the front of the bottom of the oven, is an operatingarm 26 hav- 1 ing a manipulating handleV 27 thereto. To the top portionof my member 26 I attach a guard or checkk device .28. Thisl guard orcheck device controls the operationlof the supply valves 29 and 30respectively.

In operation` when the oven is desired to t be used, the lhandle 27 isVgrasped and@y thrown toone side thereby moving the damper 13 to open theapertures 11 in the bot` tom of the oven as `can, clearly 'be seen onperusal of Fig. 2.v This act, .at the same time throws over the 279 andV30, allowing them to be turned'to vsupply gas to the burners 81 and 32which are centrally placed 'i ,i y f j near'the bottom of the oven asshown in Fig. 1. lThis movement of the damper 18 vat Vthe same lmomentmoves the damper member 19 at the back of the oven thereby opening thevent 24.. From its construction this damper has not a pivoted motion buta guard 28 thereby free-pV shifting` motion moving in unison with thedamper 13.` These ,devices allow air to enfvalves Q9 and 80 so ter theoven, supplying the necessary oxygen to the fuel burning from the member'31 and 32, thereby suppl-ying `heat to all parts of the oven, the samepassing through the offset portions 9 and l0 of the shelves '12 and thenout through the vent 9A and eX- hausted through the pipe 33.

When the oven is not desired to rbe used, the supply valves Q9 and 30are given a 90o turn thereby Cutting off the supply vof gas to thedampers from the feed pipe 34k. The manipulating handle is then ygraspedand thrown in the opposite direction. This act closes all the aperturesinthe front of the oven and the vent in the back of the =oven at thesame moment, and simultaneously throws the guard 28 in front of thesupply thatethese can not be manipulated while thedampers are closed.

Having vdescribed my invention what I claim as new and desire to secureLetters Patent upon is:

Copies of 'this patent ymay be obtained for A device of the characterdescribed comprising a stove having a plurality of groups off aperturesthrough Ithe lbottom thereof at widely separated points, each groupconsisting of a plurality of apertures positioned approximately at rightangles to the edge of the bottom, a bracket having a slotted portion andtwo offset attaching end portions positioned adjacent each group atapproximately right-angles thereto and parallel with said edge, and aplurality of oppositely disposed damper blades adapted to close .theapertures in each group, .the ends of each blade playing in saidbrackets.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CORNELIA B IIAWLEY, GEORGE W. HAWLEY.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

